Exterior Caulking
Sealing the gaps around windows, doors and vulnerable transitions with high-grade materials and proper joint preparation, so the building stops leaking air and water.
Small gaps, big energy bills
Air leaks around windows and doors account for a serious share of the energy a building loses. Properly applied exterior caulking is a barrier against both: it stops water seeping into cracks and crevices, and it stops conditioned air walking out of the building.
We assess the property first and tell you which areas actually need sealing. Every application follows the manufacturer technical data sheet, with the right tools, the right joint preparation, and an eye on temperature and humidity, because sealant applied in the wrong conditions will not bond no matter how good it is.
What the work includes- Window and door perimeter sealing
- Siding, trim, brick and stone transitions
- Removal of failed sealant and proper joint preparation
- Weather-resistant, UV-stable products rated for exterior use
- Application to the manufacturer specification, in the right conditions
- Maintenance programmes to inspect and repair joints before they fail
Reasons owners book exterior caulking
- Drafts felt around windows and doors in winter
- Heating and cooling bills climbing with no change in use
- Visible gaps or cracked sealant around window frames
- Water marks on interior sills after wind-driven rain
- Insects finding their way in through transitions and trim
The same spot, photographed twice
Window perimeter sealant removed and replaced
Exterior Caulking, answered
Air leakage around openings is one of the cheapest losses in a building to fix. Sealing it improves insulation performance, cuts drafts and cold spots, and lowers heating and cooling consumption, usually for a fraction of what window replacement would cost.
Most of the year in Ontario. Temperature and humidity are checked before application because they affect cure and adhesion, so scheduling is planned around the weather rather than fought against it.
Yes. We offer maintenance programmes that inspect and repair cracks or gaps as they develop, which is considerably cheaper than waiting for water damage to make the decision for you.
Want a price on this?
On-site estimates are free, written and itemised, so you can see exactly what you are paying for before anything starts.